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Old 02-14-2021, 09:40 AM
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1999 W210 E300 Turbodiesel Block Heater Question?

Is there an OE block heater on a 1999 E300 Turbodiesel? If so where is it located? Jake12tech said in a post, “I ordered a block heater cord for it.” Which makes me think mine may have a block heater and just needs a cord. My car starts ok in this weather but dies after 5 min or so. The car is new to me so we are still getting acquainted, but I suspect more of a fuel issue since it starts so well. I have added diesel additives, a winter anti-gel formula with moisture dispersant and injector cleaner. A few days ago when I was refueling I noticed moisture on the inside of the fuel cap from condensate so I assumed I may have a water in fuel issue. Yesterday I changed the fuel filter and drained its contents into a clean container, there was no water present, but a lot of small particulate crud came out of it, (looked like ground up O-ring material). The car has quit me twice about 5 minutes after a cold start. Both times I used a small electric heater and blew warm air on the fuel filter until warm to touch and it ran ok afterwards. It would be much better with our current weather conditions if a block heater were in use. It’s now 5 degrees here in NW Oklahoma tonight's low is forecast to be -8, then tomorrow’s high of 6 then low of-8 then a high of 8 etc. etc. Thanks Kirk T.

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Old 02-14-2021, 10:10 AM
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Originally Posted by Kirk T View Post
...The car has quit me twice about 5 minutes after a cold start...
Has nothing to do with cold weather but something else. Air in fuel?
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Old 02-14-2021, 10:51 AM
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Originally Posted by christuna View Post
Has nothing to do with cold weather but something else. Air in fuel?
It could be air infiltration due to cold. a seal shrinking, fuel thicker so it pulls some air around a questionable line connection or the like. It has only done it in this extreme cold weather. The dirty fuel filter may have contributed. Any idea if there is an OE block heater? Or where it would be located if so? Kirk T
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Old 02-14-2021, 10:55 AM
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Quote:
Originally Posted by Kirk T View Post
It could be air infiltration due to cold. a seal shrinking, fuel thicker so it pulls some air around a questionable line connection or the like. It has only done it in this extreme cold weather. The dirty fuel filter may have contributed. Any idea if there is an OE block heater? Or where it would be located if so? Kirk T
It should be on the passenger side of the engine towards the back.

Though I'm not sure if all cars had it.

As a side note: your car should have a coolant-to-fuel heat exchanger
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Old 02-14-2021, 11:04 AM
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Quote:
Originally Posted by christuna View Post
It should be on the passenger side of the engine towards the back.

Though I'm not sure if all cars had it.

As a side note: your car should have a coolant-to-fuel heat exchanger
Thank you, I am fixing to go start it and see if the fuel filter replacement made the difference. The new seals would have made the difference if it happened to be where the air was coming from. Kirk T
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Old 02-14-2021, 07:42 PM
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Smile

Quote:
Originally Posted by christuna View Post
It should be on the passenger side of the engine towards the back. As a side note: your car should have a coolant-to-fuel heat exchanger
I see a threaded plug back there about 1 1/4'' dia. I am guessing that's where the block heater would go. It started fine at 8 degrees and ran good so I went for a drive.

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